diff --git a/openspec/changes/more-patterns/.openspec.yaml b/openspec/changes/archive/2026-11-08-more-patterns/.openspec.yaml
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rename to openspec/changes/archive/2026-11-08-more-patterns/.openspec.yaml
diff --git a/openspec/changes/more-patterns/design.md b/openspec/changes/archive/2026-11-08-more-patterns/design.md
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rename from openspec/changes/more-patterns/design.md
rename to openspec/changes/archive/2026-11-08-more-patterns/design.md
diff --git a/openspec/changes/more-patterns/proposal.md b/openspec/changes/archive/2026-11-08-more-patterns/proposal.md
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diff --git a/openspec/changes/more-patterns/specs/pattern-placement/spec.md b/openspec/changes/archive/2026-11-08-more-patterns/specs/pattern-placement/spec.md
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rename from openspec/changes/more-patterns/specs/pattern-placement/spec.md
rename to openspec/changes/archive/2026-11-08-more-patterns/specs/pattern-placement/spec.md
diff --git a/openspec/changes/more-patterns/tasks.md b/openspec/changes/archive/2026-11-08-more-patterns/tasks.md
similarity index 100%
rename from openspec/changes/more-patterns/tasks.md
rename to openspec/changes/archive/2026-11-08-more-patterns/tasks.md
diff --git a/openspec/specs/pattern-placement/spec.md b/openspec/specs/pattern-placement/spec.md
index 9bfa11f..5fb10ad 100644
--- a/openspec/specs/pattern-placement/spec.md
+++ b/openspec/specs/pattern-placement/spec.md
@@ -58,3 +58,17 @@ The system SHALL ignore left clicks when no placement tool is active.
 #### Scenario: No tool
 - **WHEN** the user left-clicks while no tool is active
 - **THEN** the grid is unchanged
+
+### Requirement: Additional built-in patterns are available
+The system SHALL provide additional built-in patterns (Beacon, Loaf, Boat, Tub, R-pentomino, Acorn) selectable via keys 5-0.
+
+#### Scenario: Select beacon
+- **WHEN** the user triggers `select:beacon`
+- **THEN** a beacon preview is shown
+
+### Requirement: New patterns support rotation
+The system SHALL support 90-degree rotation for all new patterns.
+
+#### Scenario: Rotate new pattern
+- **WHEN** the user rotates a new pattern preview
+- **THEN** its cells rotate accordingly